2026606644 has 36 divisors (see below), whose sum is σ = 5175632644. Its totient is φ = 668570112.

The previous prime is 2026606627. The next prime is 2026606649. The reversal of 2026606644 is 4466066202.

2026606644 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 6 + 0 + 6 + 644 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1090980900 + 935625744 = 33030^2 + 30588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2026606599 and 2026606608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026606649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286687 + ... + 293670.

Almost surely, 2^2026606644 is an apocalyptic number.

It is an amenable number.

2026606644 is an abundant number, since it is smaller than the sum of its proper divisors (3149026000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2026606644 is a wasteful number, since it uses less digits than its factorization.

2026606644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580464 (or 580459 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2026606644 is about 45017.8480605193. The cubic root of 2026606644 is about 1265.4835011154.

The spelling of 2026606644 in words is "two billion, twenty-six million, six hundred six thousand, six hundred forty-four".